Software Downloads and Related Files

The rainfall analysis when using shapefile does not calculate entirely in the April 12, 2016 release of DDMSW 530. It is found that two corrupted files are causing the issue. To correct the problem, it is suggested that the two offending files should be updated and replaced in the "Data" folder where the DDMSW 530 software was installed.

This new version provides much-improved features and capabilities of the three core modules of DDMSW that include Hydrology, River Mechanics, and Storm Drainage Hydraulics. On the Hydrology module, DDMSW enhances the development of HEC-1 model and the use of Rational Method including post-processing and better precision reporting of model results. On River mechanics module, the program offers refined procedures in performing scour evaluation, riprap sizing, launchable riprap design, sediment yield analysis, and lateral erosion investigation. The new release of the program also offers new tools and improved features of the Storm Drainage Hydraulics module.

This will upgrade Version 4.8.2 of DDMSW to Version 5.3.0. The new upgrade provides enhanced features and capabilities on the three (3) core modules of the software that include Hydrology, River Mechanics, and Storm Drainage Hydraulics and resolves a number of bugs and issues that have been identified in the previous versions of the program.

For sediment yield bed load computation, the unit sediment bed load [i.e., qs (cfs/ft)] should be multiplied with the average width to obtain the bed load (Qs). However, in DDMSW version 4.8.2, the top width is used instead of the average width. This may increase the bed load incorrectly. Before the next version of DDMSW is released in 2016, the users may develop a simple Excel to estimate the bed load Qs based on the qs, flow area, and flow depth results from DDMSW 4.8.2. The average width can be computed by dividing the flow area with the flow depth. The bed load estimation should be applied individually to main channel, left overbank, and right overbank. The total bed load is the sum of bed load of main channel, left overbank, and right overbank. The final bed load volume (Vs) can be estimated by Vw*Qs/Qw where Vw is the runoff volume, Qw is the runoff peak, and Qs is the bed load (cfs).

This new patch fixes the start-up form when using the Riprap Sizing method for the River Mechanics module, where incorrect data entry textboxes are displayed. The new patch also includes improved features and capabilities of the River Mechanics module.

This new patch improves the data entry for the River Mechanics cross-section data and fixes the bank angle issue with the Riprap Sizing analysis. The new patch also includes improved features and capabilities of the River Mechanics module.

This new version provides new features and capabilities that enhance the development of HEC-1 model and use of Rational Method as well as in the post-processing of model results. In addition to the improvements on the hydrology module, significant refinements have also been implemented on the river mechanics module including riprap sizing, launchable riprap, sediment yield analysis, lateral erosion, and low-flow incisement methodology. Also, street drainage hydraulics and storm water drainage systems modeling are two features that are currently implemented in this new release of the program.

This patch adds more capabilities and features to the previous version of DDMSW (Version 4.6.4d) that enhance the development of HEC-1 model and use of Rational Method as well as in the post-processing of model results. In addition to the improvements on the hydrology module, significant refinements have also been implemented on the river mechanics module including riprap sizing, launchable riprap, sediment yield analysis, lateral erosion, and low-flow incisement methodology. Also, street drainage hydraulics and storm water drainage systems modeling are two features that are currently implemented in the new DDMSW Version 4.8.0.

This new version implements the NSTPS iterative procedure for imported HEC-1 Input Data File to compute and upgrade NSTPS parameters for Channel Routing involving RS Card. Also, this new version fixes the installation issue with 64-bit Windows 7 operating system.

This patch fixes a few minor bugs that have been found in DDMSW 4.6.0 including the bug found in Neill's general scour equation. There are also some updates for 64 bit operating systems that affect the PREFRE and MCUHP1 models.

The Flood Control District of Maricopa County is pleased to announce the release of DDMSW 3.3.2, release dates 4/10/2007 and 6/12/2007. If you installed the DDMSW 3.3.2 package before June 12, 2007 from one of the four training sessions at the Flood Control District of Maricopa County (10/24/2006, 11/07/2006, 04/05/2007, 05/14/2007), you will need to download the June 12, 2007 version of MCUHP1.

DDMSW 2.1.0, release date October 11, 2002, can be used for hydrological analyses for the Flood Control District of Maricopa County as outlined in the Drainage Design Manual, Volume I Hydrology (1995). DDMSW 2.1.0 replaces DDMSW 1.8 and earlier versions of DDMSW and DDMS. There is no fundamental change in terms of hydrologic procedures compared with previous versions. Significant enhancements have been made in DDMSW 2.1.0. regarding graphing and reporting features.

The Flood Control District of Maricopa County has released Drainage Design Management System for Windows Version 1.8 (DDMSW 1.8), which can be used for hydrological analyses for the District as outlined in the Drainage Design Manual, Volume I Hydrology (1995). DDMSW 1.8 replaces DDMSW 1.5, DDMSW 1.6, and DDMS. Computer bugs found in DDMSW 1.8 have been fixed.

The Jan. 1996 zip file contains the corrected MCUHP2.EXE as well as a new SPREAD.FRM file. The new SPREAD.FRM file accommodates Kn values in the Land Use section of 3 decimal places, whereas the previous version allowed only 2 decimal places.